Finding the Fourth Proportional to 99,773.74, 137,682.24 and 56,747.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99,773.74 : 137,682.24 = 56,747.42 : x
2. Step 2: Convert to fraction form
   99,773.74/137,682.24 = 56,747.42/x
3. Step 3: Cross multiply
   99,773.74x = 137,682.24 × 56,747.42
4. Step 4: Simplify right side
   99,773.74x = 7,813,111,899.82
5. Step 5: Solve for x
   x = 7,813,111,899.82/99,773.74
6. Step 6: Final answer
   x = 78,308.30